Bicycle.



no. 628,426 Patented July 4, I899.

T. s. WOODRUFF.

BI BY 0 L E.

(Application filed Feb. 15, 1898.)

(N 0 Modal.)

' INVENTOR T401724: 6', h ai WITNESSES:

ATTOR N EY UNITED STATES THOMAS S. VVOODRIIFF, OF GIRARD,

PATENT OFFICE.

PENNSYLVANIA, ASSIGNOR TO ROSA I. ODELL, OF NEIV YORK, N. Y., AND SARAH H. \VOODRUFF AND MARY \V. JOHNSTON, OF ERIE, PENNSYLVANIA.

BICYCLE.

SPECIFICATION forming part of Letters Patent No. 628,426, dated July 4, 1899.

Application filed February 15, 1898.

' enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, forming part of this specification.

My invention relates to improvements in bicycles, and particularly to improvements in mechanism for applying handpower to assist the ordinary foot-power in the propulsion thereof; and it consists substantially in securing the lower end of a vertical bar to the fork supporting the front wheel, said bar extending up in front of the frame supporting the handle-bar postand being connected by a backwardly-projecting arm to the top of the handle-post, so as to move freely therewith, and upon this vertical bar is secured a bearing for a sprocket-wheel, from which a chain extends down to a sprocket on the front wheel of the bicycle, and on the upper end of 'this vertical bar there is also a transverse sleeve in which the central portion of the handle-bar is pivoted,so asto rotate freely therein, and to the handle-bar rods are pivoted, which extend downward and forward to cranks on the sprocket-wheel mounted in the bearing on said bar, so that by moving the handle-bars up and down the sprocket-wheel is rotated.

Hereinafter my invention is more fully de in which the front wheel D is journaled, is

Serial No. 670,372- (No model.)

mounted and secured in the vertical part A of the bicycle-frame in the usual manner. To the fork 0, above the wheel D, thereis secured a forwardly-projecting arm a, and from the outer end of this arm 0 a tubular bar E extends upward in front of the part A of the frame to and above the top thereof, where it is provided with an arm 6, extending back ward and curving downward until it enters the top of the handle-post E, where it is secured in the ordinary manner. By this means the bar E rotates freely around that part A of the frame in unison with the han= die-post therein, and in the top of the bar E, at its junction with the arm a thereon, there is a transverse sleeve-bearing G, adapted to receive the central. part h of a handle-bar H, which is so mounted thereon that it will rotate freely in the sleeve-bearing G. This sleeve-bearing G, I preferably make in two parts secured together by means of bolts 9 g.

Upon the front of the bar E, I clamp a transverse bearing 1, in which is mounted the shaft J of a sprocket-wheel J, and upon the ends of the shaft J are cranks j, extending outward therefrom at the same angle, and from these cranks j connecting-rods K extend to the handle-bar II and have their ends pivoted in ears h h on the under side of the hanby Letters Patent of the United States, is-

The combination, with a bicycle-frame, and steering-wheel, of a bar arranged parallel with the steering-head and provided at its upper part with an ofiset arm which engages with the said steering-head, an arm securing hat I claim as new, and desire to secure.

the lower part of the said bar to the front fork, a sprocket-wheel carried by the said bar and provided with two crank-pins arranged in line With each other upon one side of its axis, a sprocket-Wheel secured to the steering-wheel, a chain passing around the said sprocket-Wheels, a rearWardly-projecting handle-bar having its middle portion pivoted to the top portion of the said bar, and connecting-rods pivoted to the said handle-bar and 10 engaging with the said crank-pins, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS S. VOODRUFF. Witnesses:

FRED EINFE DT, A. L. JACKSON. 

